GenHTTP Lambda

AI app builder with free hosting

Describe an app.Your agent puts it online.

Polls, guestbooks, leaderboards, multiplayer games. Describe what you need to our AI agent or to the one you already use, and get a working app, hosted for you, with a link to share. It stays editable, so you can keep refining it long after the first version.

Build something

Free. No sign-up, no credit card, nothing to install.

From a sentence to a live app

A private browser window, no account, and a single request on the build page - followed by the finished app, opened from its link just as any visitor would.

The build is shown sped up. Everything else is in real time.

Try it yourself

Not a one-shot app generator

Most generators produce a result and leave you with it. Here the app keeps running where it was built, so you and your agent can continue working on it.

The build page with a request for a lunch poll typed in
1

Say what you want

Describe it in plain language, either to the agent on this site or to the one you already use. No code, no setup and no account required.

The finished lunch poll, open in a browser
2

Get a working app and a link

The app is built, hosted and returned as a public address you can share. No server, hosting plan, domain or database to set up - that part is ours. It keeps its data - votes, scores, messages - so everyone who opens it sees the same state.

The poll's control center: its versions, each with what was asked for, what it changed and the difference to the one before
3

Keep improving it

Every app comes with a private editor link. Hand it to your agent along with the next change, or open it yourself. Each change becomes a new version, and the address stays the same.

A week later

Here is the editor link for my lunch poll. Please close voting at 11 on Fridays and show the winner at the top.
Done. Version 4 is live at the same address, and version 3 is still available if you want to roll back.

Bring your own agent: Claude, Codex, Cursor

Already vibe coding with Claude Code, Codex, Cursor or another assistant? Connect it to this address - a remote MCP server, no key needed - and it can build, deploy and update apps here, straight from the conversation you already have open.

Address for your agent
https://genhttp.dev/mcp

Run this once in a terminal. From then on, Claude Code can create and change apps here from any project.

Terminal
claude mcp add --transport http genhttp https://genhttp.dev/mcp

Using something else? Windsurf, Codex, Zed and most other agents can add a remote MCP server in their settings. Give them the address above.

Then simply ask: build a sign-up sheet for our team event and put it online.

Built something that only runs on localhost? Host your vibe-coded app here.

Talk to us

Need help, planning something larger, or looking for a solution built for you? We would be glad to hear from you.

Email usFor projects, enquiries and anything you would prefer to discuss privately.solutions@genhttp.dev
Join the DiscordShare what you have built, get help with the next step, and talk directly with the team.The GenHTTP Discord